The United States has sanctioned Rwanda's Gasabo Gold Refinery and its executives over allegations they helped traffic conflict minerals from eastern DR Congo.
The Democratic Republic of Congo has filed a new case against Rwanda at the International Court of Justice, accusing Kigali of violating international law during the long-running conflict in eastern Congo.
Lawyers for the former rebel leader and Vice-President of DR Congo, Jean-Pierre Bemba, who was acquitted of war crimes by the International Criminal Court (ICC) last year, are seeking nearly $75m (£57m) in damages.
